2004 US 20040190299 A1 Flashlight Chapman

2004年美國20040190299 A1手電筒查普曼(19) United States

(19)美國(12) Patent Application Publication Chapman

(12) 專利申請公開查普曼(10) Pub.No.：US 2004/0190299 A1

(10) 公開號：US 2004/0190299 A1

(43) Pub.Date：Sep.30,2004

(43) 發佈日期：2004 年 9 月 30 日(54) FLASHLIGHT

(54) 手電筒(75) Inventorl：Leonard T.Chapman,North Hollywood,CA(US)

Correspondence Addressl：PERKINS COIE LLP

POST OFFICE BOX 1208 SEATTLE,WA 98111-1208(US)

(75) 發明人：倫納德 T.Chapman，北好萊塢，加利福尼亞州（美國） 通訊地址：博欽律師事務所 OST OFFICE BOX1208

西雅圖，華盛頓州 98111-1208（美國）(73) Assignee：Chapman/Leonard Studio Equipment

(73) 申請人：查普曼/倫納德演播室設備(21) Appl.No.：10/397,766

(21) 申請書編號：US 10/397,766

(22) Filed：Mar.25,2003 Publication Classification

(22) 提起：3 月 25 日，2003 發表分類(51) Int.Cl.7…………………………F21V 23/04(51)(52) U.S Cl. ……………………….362/394(52)(57) ABSTRACT

A flashlight has a lens moveable relative to an LED. The beam of light provided by the LED can be focused and provides a uniform light pattern across the range of focus. The lens is supported on a front housing section and the LED is supported on a back housing section threaded onto the front housing section. Twisting the front housing section closes a switch providing power to the LED, to turn the flashlight on. Twisting the front housing section also adjusts the focus of the beam. A timer circuit within the flashlight turns the flashlight off after a selected time interval, to preserve battery life.

(57) 摘要手電筒有一個鏡頭可相對於一個 LED。由 LED 提供光束可以聚焦並提供跨焦點範圍內均勻的光圖案。該透鏡被支撐在一個前殼體部分而LED 被支撐在後罩部螺紋連接到前殼體部分。旋轉前殼體部分關閉一個提供電源給 LED 開關，打開手電筒。旋轉前殼體部分也能調整光束的聚焦。手電筒內的定時器電路選定時間間隔後，關閉手電筒迴路，

以延長電池壽命。

BACKGROUND OF THE INVENTION

發明背景[0001] The field of the invention is flashlights. More specifically, the invention relates to a portable hand held battery powered flashlight. For many years, flashlights have used batteries, specifically, dry cells, to power an incandescent bulb. Reflectors around or behind the bulb have been provided to help direct light from the bulb. More recently, with the development of light emitting diodes (LED's), in some flashlights the incandescent bulb has been replaced by an LED. Use of an LED in place of an incandescent bulb as a light source in a flashlight has several advantages. Initially, LED's use less power than incandescent bulbs. As a result, battery life in an LED flashlights can be greatly extended. In addition, LED's are manufactured with specific light emission directivity. Unlike an incandescent bulb, which radiates light in all directions, LED's emit light in specific directions, or within a specific angle. Accordingly, for spot illumination, which is the most common use for flashlights, the directivity of LED's is advantageous. LED's also have an operating life which is far longer than that of most incandescent bulbs. Consequently, the disadvantages of bulb burnout or failure, and the need to replace bulbs relatively frequently, are largely avoided.

本發明的領域是手電筒。更具體地說，本發明涉及一種便攜式手持的電池供電的手電筒。多年來，手電筒已使用過的電池，具體而言，幹細胞，供電白熾燈泡。周圍或後面的燈泡反射器已提供幫助直射光從燈泡。最近，隨著發光二極管（LED ）的發展，在某些手電筒白熾燈泡已經換成了 LED 燈。使用到位白熾燈泡作為手電筒光源的 LED

具有幾個優點。最初， LED 的使用比白熾燈更少的功率。其結果是，電池壽命的 LED 手電筒可大大延長。此外，LED 的與特定的發光指

向性製造。不同於白熾燈泡，其輻射的光在所有方向上，LED 的發射光中的特定方向，或者一個特定的角度範圍內。因此，對於光點照明，這對於手電筒中最常見的使用中， LED 的指向性是有利的。 LED 燈也有使用壽命遠遠長於大多數白熾燈泡。因此，燈泡燒壞或失敗，並且需要更換燈泡相對頻繁的缺點，在很大程度上可以避免。[0002] While use of LED's in flashlights have several advantages, design challenges remain. In particular, the ability to achieve a uniform beam of light under a wide range of conditions has yet to be achieved with existing flashlights, regardless of whether the light source is an LED, an incandescent bulb or another light source. The directivity (included angle) of existing LEDs is not sufficiently narrow for lighting distant from the flashlight. Even with the most directional LEDs, having a directivity angle of about 15°, the emitted light becomes very faint more than a few feet away from the LED. For various reasons, the light beam of virtually all flashlights is not uniform. The intensity of light in the beam varies. Generally, this variation appears as lighter and darker areas of the beam. Some flashlights produce a beam having an irregular shape, and decreased lighting efficiency, rather than a nearly perfect circle of uniform light.

[0002]雖然在手電筒使用的 LED 有幾個優勢，設計的挑戰依然存在特別是，為了實現在寬範圍的條件下的光的均勻的光束的能力有待與現有的手電筒實現，而不管光源是否為 LED，白熾燈泡或其它光源。現有 LED 的指向性（夾角）不是足夠窄來自手電筒照明遙遠。即使是最定向 LED，具有大約 15°的指向角度，發射的光超過幾英尺遠從 LED變得非常微弱。由於種種原因，光束幾乎所有的手電筒不

統一。光的光束中的強度變化。一般來說，這種變化表現為光束的明暗區域。一些手電筒生產具有不規則形狀的光束，並降低照明效率，而不是均勻的光的幾乎完美的圓形。[0003] In the past, several flashlights, especially flashlights having incandescent bulbs, have included beam focusing features. In these types of flashlights, typically a reflector behind or surrounding the bulb is moved relative to the bulb, to change the light beam pattern or to focus the beam. While beam focusing is a useful feature in these types of flashlights, generally, the shape or uniformity of the beam changes as the beam is focused. These types of flashlights are unable to maintain uniform light beam quality over an entire range of focus. As a result, the light beam typically has dark spots and appears dimmer, and the quality of the light beam, in terms of field of illumination, is degraded

[0003]在過去，幾個手電筒，尤其是有白熾燈泡手電筒，已包括光束聚焦特性。在這些類型的手電筒，通常後面的反射器或環繞燈泡相對移動到燈泡上，以改變光束圖樣或聚焦光束。而束聚焦在這些類型的手電筒一個非常有用的功能，一般的光束變化的光束形狀或均勻性集中。這些類型的手電筒都無法保持一致的光束質量而不是重點的整個範圍。作為結果，該光束通常具有暗點，並出現調光，且光束的質量，在照明領域的術語，被降解[0004] Another drawback with battery powered flashlights is of course the limited life of batteries. While use of LED's can greatly extend battery life, the traditional drawbacks associated with batteries have not been fully overcome. Even with LED flashlights, prolonged use will drain the batteries. Most flashlights have an on/off switch as the only control.

Accordingly, if the switch is inadvertently left on, the batteries will be drained. Thus, to maintain the flashlight in a useable condition, the user must remember to turn the flashlight off. While seemingly a simple step, it is often overlooked, especially where the flashlight is carried from a dark location into a bright location, where there are extensive distractions to the user, or where the flashlight is used by young children. To overcome this disadvantage, various flashlights having automatic shut off features have been proposed. However, few, if any of these proposals have found widespread success, either due to design, operation, manufacturing, cost and/or other reasons. In certain uses or circumstances, it is important that the automatic shut off feature be turned off entirely, so that the flashlight is switched on or off manually. This added requirement provides an additional engineering challenge in flashlight design.

[ 0004 ]用電池供電的手電筒另一個缺點當然是電池的壽命有限。而使用 LED 的可以大大延長電池的使用壽命，電池與相關的傳統弊端尚未完全克服。即使有 LED 手電筒，長時間使用會消耗電池。最手電筒具有一個開/關開關作為唯一的控制。因此，如果開關被無意中留，電池將被耗盡。因此，要保持在一個可用的條件的手電筒，用戶必須記得把手電筒關閉。雖然看似簡單的一個步驟，它經常被忽視，尤其是在手電筒從黑暗處帶到一個明亮的地方，那裡有大量的干擾用戶，或手電筒是由年幼的孩子。為了克服這一缺點，已經提出了具有自動關閉功能的各種手電筒。然而，很少，如果有的話，這些建議已得到廣泛的成功，無論是由於設計，經營，製造，成本和/或其他原因。在某些用途或情況，重要的是，該自動關閉功能被關閉，完全，從

而使手電筒被打開或關閉手動。這增加了要求提供手電筒設計一個額外的工程挑戰。[0005] Flashlights have been adapted for use in extreme environments. For example, diving or underwater flashlights have been designed to operate in an undersea environment of high water pressure, low temperature, corrosive seawater, etc. While these types of environmental flashlights have met with varying degrees of success, engineering challenges remain in providing a flashlight which can reliably withstand extreme pressures, high and low temperatures, corrosive environment, shock, vibration and other adverse environmental conditions.

[0005]手電筒已經適應在極端環境下使用。例如，潛水或水下手電筒被設計在高水壓，低溫，海水腐蝕等海底環境中運作雖然這些類型的環保手電筒獲得了不同程度的成功，工程挑戰仍然提供了一個手電筒它可以可靠地承受極端壓力，高溫和低溫，腐蝕性環境，衝擊，振動等惡劣環境條件。[0006] Accordingly, it is an object of the invention to provide an improved flashlight.

[0006]因此，本發明的一個目的是提供一種改進的手電筒。SUMMARY OF THE INVENTION

發明內容[0007] In a first aspect, a flashlight has an aspheric, plano convex, or other suitable lens for focusing light from an LED powered by batteries. As the LED has low power consumption useful battery life in the

flashlight is greatly extended. The lens helps to provide a uniform and bright light beam, without the need for a reflector.

[0007]在第一個方面，一個手電筒具有非球面，平凸透鏡或其它合適的透鏡，用於聚焦光從 LED 由電池供電。由於 LED 具有低功耗有用的電池壽命在手電筒被大大延長。透鏡有助於提供均勻並且明亮的光束，而不需要一個反射器。[0008] In a second aspect, the lens is moveable relative to the LED, allowing the beam to be focused. Preferably, the flashlight housing has a front section supporting the lens, and a rear section supporting the LED. With the rear section advantageously threaded into the front section, turning or twisting the front section focuses the light beam.

[0008]在第二方面中，透鏡是可相對於所述發光二極管，從而允許光束被聚焦。優選地，手電筒外殼有配套鏡頭前部，並配套了 LED

後段。與後部部分有利地擰入前部，轉動或扭轉的前部將所述光束聚焦。[0009] In a third and separate aspect, a flashlight has an electronic timer circuit which automatically turns the flashlight off after a preset interval. As a result, battery power is preserved, even if the flashlight is inadvertently left on. Preferably, the preset interval can be adjusted for a short period of time, such as 5-7 minutes, or for a longer period of time, for example, 15 or 20 minutes. For specialized requirements, the timer can be designed to turn off the flashlight after a preselected interval, or the timer can be disabled to provide continuous operation (until manually turned off). The timer circuit is advantageously combined with an LED as the light source in the flashlight.

[0009]在第三和獨立方面，一種手電筒具有一個電子計時器電路，它預先設定的時間間隔後自動關閉手電筒關閉。其結果是，電池電量被保存，即使手電筒無意中留。優選地，所述預設的時間間隔可以很短的一段時間內，如 5-7 分鐘，或為一個較長的時間週期，例如，15 或 20 分鐘進行調整。對於特殊要求，定時器可以設計一個預選的時間間隔後關閉手電筒，或定時器可以被禁用，以提供連續操作（直到手動關閉）。定時器電路被有利地組合用 LED 作為手電筒的光源。[0010] In a fourth and separate aspect, a flashlight has multiple lens on a lens base aligned with multiple LED's or lamps. Turning a first section of the flashlight causes the lenses to move towards or away from the LED's, to focus the light, with the lenses remaining axially or optically aligned with the LED's. This design allows a flashlight having multiple LED's to focus the light provided by the LED's.

[0010]在第四和獨立方面，一種手電筒具有多個透鏡的透鏡基體具有多個 LED 或燈對準。打開手電筒的第一部使鏡片移動朝向或遠離LED 的，聚焦的光，用其餘的軸向或光與 LED 的排列的透鏡。這種設計允許有多個 LED 的手電筒集中在 LED 的提供的光。[0011] Other further objects and advantages will appear from the following written description taken with the drawings, which show two embodiments. However, the drawings and written description are intended as preferred examples, and not as limitations on the scope of the

invention. The invention resides as well as sub combinations of the elements described.

[0011]其它進一步的目的和優點將結合附圖，顯示了兩個實施例中採取了如下的書面描述。但是，附圖和書面描述的目的是作為優選的例子，而不是作為對本發明的範圍的限制。本發明在於，以及所描述的元素的子組合。BRIEF DESCRIPTION OF THE DRAWINGS

附圖的簡要說明[0012] In the drawings, wherein the same element number indicates the same element in each of the views;

[0012]在附圖中，相同元件的數字表示在每個視圖中都是相同的;

[0013]FIG. 1 is a front and side perspective view of the present flashlight.

[0013]圖 1 是本手電筒的正面和側面透視圖。[0014]FIG. 2 is a side view of the flashlight shown in FIG. 1.

[0014]圖 2 是圖 1 所示的手電筒之側視圖。[0015]FIG. 3 is an exploded front and side perspective view of the flashlight shown in FIG. 1.

[0015]圖 3 是圖 1 所示的手電筒的分解前和側透視圖。

[0016]FIG. 4 is an enlarged section view of the flashlight shown in FIG. 1.

[0016]圖 4 是在圖 1 所示的手電筒的放大剖視圖。[0017]FIG. 5 is an enlarged exploded section view of the flashlight shown in FIGS. 1 and 4.

[0017]圖 5 是圖 1和圖 4 所示的手電筒中的放大分解剖面圖。[0018]FIG. 6 is a top view of the switch housing shown in FIGS. 3-5.

[0018]圖 6 是在圖 3-5 中所示的開關外殼的俯視圖。 [0019]FIG. 7 is a section view taken along line 7-7 of FIG. 6.

[0019]圖 7 是沿圖 7-7線的剖視圖。 6。[0020]FIG. 8 is a section view taken along line 8-8 of FIG. 6.

[0020]圖 8 是沿圖 8-8線的剖視圖。 6。[0021]FIG. 9 is a section view taken along line 9-9 of FIG. 6.

[0021]圖 9 是沿圖 9-9線的剖視圖。 6。[0022]FIG. 10 is a section view of the flashlight shown in FIGS. 1-5, with the front housing section in a fully extended position;

[0022]圖 10 是在圖中所示的手電筒的剖面圖。 1-5，用處於完全伸出位置的前殼體部分;

[0023]FIG. 11 is a section view showing the flashlight in a fully retracted or off position;

[0023]圖 11 是表示處於完全縮回或關閉位置的手電筒的剖視圖;

[0024]FIG. 12 is a section view showing installation of the switch housing tube.

[0024]圖 12 是表示安裝在開關殼體管的剖視圖。[0025]FIG. 13 is a section view of an alternative embodiment;

[0025]圖 13 是一個備選實施例的截面圖;

[0026]FIG. 14 is a section view of another alternative embodiment;

[0026]圖 14 是另一替代實施例的剖視圖;

[0027]FIG. 15 is an exploded section view of the flashlight shown in FIG. 14;

[0027]圖 15 是圖 14 中所示的手電筒的分解剖面圖。[0028]FIG. 16 is an elevation view taken along line 16-16 of FIG. 15;

[0028]圖 16 是沿圖中 16-16線截取的正視圖。 15;

[0029]FIG. 17 is an elevation view taken along line 17-17 of FIG. 15;

[0029]圖 17 是沿圖中 17-17線截取的正視圖。 15;

[0030]FIG. 18 is an elevation view taken along line 18-18 of FIG. 15;

[0030]圖 18 是沿圖 18-18線截取的正視圖。 15;

[0031]FIG. 19 is a schematic illustration of the shut off timer circuit in the circuitry module shown in FIGS. 3-5;

[0031]圖 19 是關閉定時器電路在圖中所示的電路模塊中的一個示意圖。 3-5;

[0032]FIG. 20 is a schematic illustration of an alternative shut off timer circuit for use in the circuitry module shown in FIGS. 3-5.

[0032]圖 20 是關閉計時器電路，用於在圖 3-5 中所示的電路模塊中使用的一種替代的示意圖。DETAILED OF DESCRIPTION OF THE DRAWINGS

詳細說明附圖的[0033] Turning now in detail to the drawings, as shown in FIGS. 1 and 2 a flashlight 10 has a lens 14 within a front cap 12 on a front housing section 16. A rear housing section 20 extends into the front housing section 16. A housing ring 18 is provided on the rear housing section 20 adjacent to the front housing section 16. And end cap 22 on the rear housing section 20 is removable to install or remove batteries from the flashlight 10.

[0033]現在轉向詳細附圖，如圖 1和 2 的手電筒 10 具有一個前殼體部分 16 的前蓋 12 內的透鏡 14。後殼體部 20 延伸到前殼體部分

16。甲座圈 18 設置在相鄰的前殼體部分 16 的後殼體部分 20。和在後殼體部 20 的端蓋 22 是可移動的，從手電筒 10安裝或取出電池。[0034] Referring now to FIGS. 3,4 and 5, the front cap 12 has a conical surface 30at its front end 32. A seal groove 41 is provided adjacent to the conical surface 30on the front cap 12 as shown in FIG. 5. Screw threads 28 are provided on the back end of the cap 12.

[0034]現在參見圖。 3,4和 5 所示，前蓋 12 有一個錐形表面 30 在其前端 32。的密封槽 41 相鄰設置的錐形表面 30 上圖所示的前蓋12。 5。螺紋被設置在帽 12 的後端 28。[0035] Referring to FIGS. 4 and 5, the lens 14 is preferably an aspheric glass, plano convex, or other suitable (depending on LED selection and focal length) lens. The lens 14 has a spherical front surface 34, and preferably a flat rear surface 36 facing the LED 50. A cylindrical or ring surface 38 at the back end of the lens 14 seals against a seal element, such as an O-ring 40 in the seal groove41 as shown in FIG. 5. The lens 14 preferably has a focal length of 8-16, 10-14 or 12 mm. The lens is sufficiently thick enough to provide adequate strength to resist pressure equivalent to 9000 feet of water. The center thickness is typically 5-6 millimeters. The term “lens” means an element that focuses or bends light.

[0035]參考圖。4和 5 所示，該透鏡 14 最好是一個非球面的玻璃，平凸透鏡或其它合適（取決於 LED 的選擇和焦距）鏡頭。該透鏡 14

具有一個球形前表面 34，並且最好是平的後表面 36 面對 LED50。在透鏡 14密封住的密封元件，如在密封槽 41 的 O形環 40如在圖

中所示的後端的圓筒形或環面 38。 5。透鏡 14 優選地具有 8-

16，10-14 或 12毫米的焦距。該鏡頭是足夠足夠厚，以提供足夠的強度，以抵抗壓力相當於 9000英尺深的水中。中心厚度通常為 5-6

毫米。術語“透鏡”指的是集中或彎曲的光的元件。[0036] Referring to FIGS. 4 and 5, a lamp housing 42 having a conical inside wall44 is placed or pressed into the front cap 12, holding the lens 14 and O-ring 40 in place. The threaded back end 28 of the front cap 12 is threaded into internal screw threads 82 at the front end of the front housing 16. The lamp housing 42 is longitudinally positioned within the front cap 12 via a flange 46 at the back end of the lamp housing 42 stopping on the back end of the front cap 12. A front cap O-ring or seal 48 seals the front cap 12 to the front housing 16.

[0036]參考圖。 4和 5，具有內壁 44 的錐形燈殼體 42放置或壓入到前蓋 12，保持透鏡 14和O形圈 40 到位。螺紋後端的前蓋 12 的28 在外殼前部 16 的前端被擰入內螺紋 82。燈殼體 42 通過一凸緣46 在燈殼體 42止動於前蓋 12 的後端的後端沿縱向位於前蓋 12 內。一個前蓋O形環或密封件 48密封件的前蓋 12 的前殼體 16。[0037] The front housing 16 is threaded onto the rear housing 20 via internal threads 84 on the front housing 16 engaged with external threads 104 at the front end of the rear housing 20. The components described above (i.e., the front cap12, lens 14, O-ring 40, lamp housing 42, and O-ring 48) are all supported on (directly or indirectly) and move with, the front housing 16.

[0037]前殼體 16 通過對前殼體 16 的內螺紋 84 在後殼體 20 的前端部卡合的外螺紋 104 螺紋連接到後殼體 20 上。上述成分（即，前蓋 12，透鏡 14，O形環 40，燈外殼 42 及 O形環 48）都被支持於（直接或間接）而一起移動，前殼體 16。[0038] Referring still to FIGS. 4 and 5, the LED, light source or lamp 50 has anode and cathode leads extending into electrical contacts 52 in a switch housing 54. A microswitch 60 is supported within the switch housing 54. A plunger 56 extends from the microswitch 60 through and out of the front end of the switch housing 54, with the plunger biased outwardly against the back surface of the housing 42. The switch housing 54 is supported on or in the front end of a switch housing tube 72. A rim or collar 64 contacts the front end of the switch housing. The contacts 52 extend through contact bores or openings 62 in the switch housing 54, as shown in FIG. 8.

[ 0038 ]仍然參考圖。 4和 5 所示，發光二極管，光源或燈 50 具有延伸到電接點 52 中的開關外殼 54 的陽極和陰極引線。微型開關 60

開關外殼 54 內的支持。柱塞 56 延伸，從微型 60 通過進出開關殼體54 的前端部的，具有向外偏壓在外殼 42 的背面上的柱塞。開關外殼 54 被支撐在或在開關外殼管 72 的前端。輪圈或領 64 個觸點開關外殼的前端。觸點 52 通過接觸孔或開口 62 中的開關外殼 54 延伸，如圖中所示。 8 。[0039] A circuitry module 70 within the switch housing tube 72 is electrically connected to the switch 60, and also to the batteries 90 via a battery contact 76extending through a tube collar 74 at the back end of

the switch housing tube 72. As shown in FIG. 4, a housing seal 78 seals the front end of the rear housing section 20 to the back end of the front housing section 16, while still allowing the front housing section 16 to turn, and shift longitudinally (along a center axis of the flashlight), as the front and rear housing sections are turned relative to each other.

[ 0039 ]一種電路模塊 70 中的開關外殼管 72 內的電經由通過管軸環 74 在開關外殼管 72 的後端延伸的電池接觸件 76 連接到開關 60

，並且還與電池 90 。如該圖所示。 4 ，外殼密封 78密封後殼體部分 20 與前殼體部分 16 的後端的前端，同時仍然允許前殼體部分16 轉動，並沿縱向移動（沿手電筒的中心軸）作為前和後外殼部分是相對的轉向彼此。[0040] The rear housing section 20 has an open internal cylindrical space for holding the batteries 90. In the embodiment shown in FIGS. 4 and 5, three N size batteries are used. Of course, different numbers and types of batteries may be used, consistent with the requirements of the LED 50 and circuitry module 70provided. The front end of the rear housing section 20 includes a seal groove 102as shown in FIG. 5, just behind the external threads 104, to hold and position the housing seal 78. A stop 106 limits the rearward range of travel of the front housing section 16 on the rear housing section 20. A housing ring 18 is pressed onto the rear housing section 20 and positioned adjacent to the stop 106. At the back end of the flashlight 10, threads 98 on the end cap 22 are engaged with rear internal threads 108. An end cap seal or O-ring 92 within a groove 93 on the end cap 22seals the end cap 22 against a recess 109 in the rear housing section 20. A battery spring 94 grounds the negative terminal of the rear most battery to the rear housing section 20, and forces the batteries 90 into contact with each other and with the battery contact 76. A hole 96 through the end cap 22 allows the flashlight10 to be mounted on a key chain, key ring or wire.

[ 0040 ]該後殼體部分 20 具有用於保持電池 90 的開放的內部圓柱形空間。在本實施例示於圖 4和 5 所示，三個 N型電池的使用。當然，不同數量和類型的電池都可以使用，以將 LED 50和電路模塊 70 提供的要求相一致。後殼體部分 20 的前端部包括如圖所示的密封槽102 。 5 ，只需將外螺紋 104 的後面，去把握和定位外殼密封 78

。一個止動 106限制了在後殼體部分 20 的前殼體部分 16 的行程的向後範圍。甲殼體環 18 被壓在後殼體部分 20和位於鄰近止動器106。在手電筒 10 的後端，在端帽 22 的螺紋 98嚙合與後部的內螺紋 108 。一端蓋密封件或 O形環 92 上的端帽 22密封在後殼體部分20 的端帽 22 對著的凹槽 109 的凹槽 93 內。電池彈簧 94場後方大多數電池的後殼體部分 20 的負端，並強制將電池 90 與相互之間以及與電池接觸 76 接觸。一孔 96穿過端帽 22允許手電筒 10 被安裝在一個鑰匙鏈，鑰匙環或鋼絲。[0041]FIG. 13 shows an alternative embodiment having a shorter length than the flashlight shown in FIGS. 1-5. The shorter length is provided by having a shorter rear housing section 122 and using shorter batteries 124. The flashlight 120 in FIG. 13 is otherwise the same as the flashlight 10 shown in FIGS. 1-5.

[ 0041 ]圖。圖 13示出具有較短長度比圖中所示的手電筒的替代實施例。 1-5 。較短的長度是由具有短的後殼體部分 122 ，並使用更

短的電池 124 提供的。手電筒 120 中所示。圖 13 是否則相同的如在圖中所示的手電筒 10 。 1-5 。[0042] The LED 50 is preferably an NSPW510BS, with a 50° directivity angle available from Nichia Corporation, Tokyo, Japan. The directivity angle generally is the included angle of the solid cone of light emanating from the LED. Outside of this solid conical angle, there is little or no light. Within the directivity angle, with most preferred LED's, the light is reasonably uniform, with some decrease in intensity near the sides or boundary of the angle. The directivity angle is specified by the LED manufacturer. Other more powerful LEDs will soon be available, which may affect lens selection. The lens 14 is preferably an aspheric 01LAG001, 2 or 111 available from Melles Griot, Carlsbad, Calif., USA. A plano/convex lens or other lenses may also be used. The lens preferably has a high level of strength to better resist pressure, such as water pressure when used underwater. In general, the front or outwardly facing surface of the lens will be curved, domed, or convex, as shown in FIG. 4, to better resist pressure forces.

[ 0042 ]該 LED 50 最好是一個 NSPW510BS ，用得自Nichia 公司，東京，日本一個 50 °的指向角。的指向角通常是光的實心錐從LED 射出的夾角。這堅硬的錐形角之外，很少有或沒有光。內的指向角，以最優選的 LED ，光線相當均勻，具有強度有些降低近的角度的邊或邊界。的指向角是由 LED 製造商指定。其他更強大的 LED即將問世，這可能會影響鏡片的選擇。該透鏡 14 最好是一個非球面01LAG001 ， 2 或 111 可從梅勒斯Griot ，卡爾斯巴德，加利福尼亞州，美國。阿平/凸透鏡或其它透鏡也可使用。該鏡頭最好有一個

高層次的力量，以更好地抵禦壓力，如水壓在水下使用時。在一般情況下，在透鏡的前面或面向外的表面將是彎曲的，圓頂形或凸形，如圖。 4 ，為了更好地對抗壓力的力量。[0043] Experimentation with LED's and lenses reveals that, in terms of flashlight performance, a specific relationship exists between the directivity angle A of the LED and the focal length of the lens f For preferred performance characteristics, the ratio of A/f is within the range of 3.5 to 6.5, preferably 4 to 6 or 4.5 to 5.5, and more preferably approximately 5.

[ 0043 ]實驗用的 LED和透鏡表明，在手電筒性能方面，有特定關係的 LED和透鏡 f 的焦距對於優選的性能特性的方向性角度 A之間存在的 A / F 比為內為 3.5〜 6.5 ，優選為 4至 6 或 4.5至 5.5 的範圍內，更優選為約 5 。[0044]FIG. 4 shows the flashlight 10 in the off position. The front housing section16 is threaded onto the rear housing section 20, until it comes to the stop 106. In this position, the plunger 56 is almost entirely within the switch housing 54, causing the switch 60 to be in the off position. Electrical power provided from the batteries 90 through the battery contact 76 and circuitry module 70, as well as through the rear housing section 20, is provided to the switch 60. The switch 60 is also connected to the LED, as shown in FIG. 19. As the switch 60 is in the off position, no power is provided to the LED. To turn the flashlight 10 on, the front housing section 16 is turned (counter clockwise in FIG. 1) causing it to move forward via the interaction of the threads 104 and 84. As the front housing section16 moves forward, the front cap 12, lens 14 and the lamp housing 42 move with it. The LED 50, switch housing 54, plunger 56, switch 60 circuitry module 70 all remain in place,

as they are supported within the switch housing tube 72 which is fixed to the rear housing section 20.

[ 0044 ]圖圖 4示出處於關閉位置的手電筒 10 。前殼體部分 16 被擰到後殼體部分 20 中，直到它停止 106 。在這個位置上，柱塞 56

幾乎完全是在開關殼體 54 內，從而使開關 60將在關閉位置。通過電池接觸 76和電路模塊 70 ，以及通過後殼體部分 20 提供從電池90 的電力，被提供給開關 60 。開關 60 也被連接到 LED ，如圖中所示。 19 。作為開關 60處於關閉位置時，沒有電源提供給 LED 。要打開手電筒 10 上，前殼體部分 16 被接通（逆時針圖 1 中），使其經由螺紋 104和 84之間的相互作用向前移動。如前殼體部分 16

向前移動時，前蓋 12 ，透鏡 14和燈殼體 42移動它。在 LED 50

，切換室 54 ，柱塞 56 ，開關 60 的電路模塊 70都留在原地，因為它們是在開關外殼管 72 被固定到後殼體部分 20 內的支持。[0045] As the LED or light source 50 and lamp housing 42 move away from the switch housing 54, the plunger 56, biased by spring force in the switch 60 also moves forward or outwardly. This movement causes the switch 60 to move into an on position. In the on position, the electrical power is provided to the LED 50. To focus the light from the LED or light source 50, the user continues to turn the front housing section 16. This increases the spacing “S” between the lens 14 and the LED 50, allowing light from the LED to be focused to a desired distance. A position stop 130 on the front end of the switch housing tube 72 prevents the front housing section 16 from separating from the rear housing section 20. When the front housing section 16 is turned to its maximum

forward position (where further forward movement is prevented by the stop 130), the lens 14 focuses the light to a maximum distance.

[ 0045 ]由於 LED 或光源 50和燈殼體 42移動遠離開關殼體 54 ，柱塞 56 ，通過在開關 60 的彈簧力偏壓也向前移動或者向外。這個運動使開關 60移動到接通位置。在上位置中，電功率被提供給 LED

50 。從 LED 或光源 50將光線聚焦時，用戶繼續轉動前殼體部分16。這增加了透鏡 14和 LED 50之間的間距“S” ，使來自 LED 的光被聚焦到一個期望的距離。在開關外殼管 72 的前端上的一個位置停止 130防止前殼體部 16 從後殼體部分 20 分離。當前殼體部分16 被打開到它的最大向前位置（其中，進一步向前運動，防止由停止 130 ） ，該透鏡 14將光聚焦到一個最大距離。[0046] Referring momentarily to FIG. 12, the switch housing tube 72 is installed from the front end of the front housing section. The threaded section 73 of the switch housing tube 72 engages with the threads 82 on the front housing section. The spanner tool 75 is inserted through the back end and is used to tighten the switch housing tube 72 in place. The rim or stop 130 at the front end of the switch housing tube acts as a mechanical stop to prevent the front housing section from separating from the rear housing section.

[ 0046 ]暫時參照圖如圖 12 所示，開關外殼管 72 從前方收納部的前端安裝。開關外殼管 72 的螺紋部分 73 接合的前殼體部的螺紋 82

。扳手工具 75 通過後端插入並用來擰緊到位開關外殼管 72 。在開關

殼管用作機械止擋，以防止前殼體部從所述後殼體部分的分離的前端邊緣或停止 130 。[0047] The combination of the LED 50 and the lens 14 allows the flashlight 10 to focus, and also to provide a narrow direct beam of light. The focusing range of the lens 14 allows filaments of the light source, which appear in the beam, to be used as pointers or indicators. A light beam provided by the flashlight 10 has minimal dark spots. In addition, the spot pattern produced by the flashlight 10 is nearly a perfect circle, throughout the entire range of focus. The LED or light source 50may be provided in various colors.

[ 0047 ]的 LED 50和透鏡 14 使電筒 10進行對焦，並且還提供光的窄直光束的組合。透鏡 14 的聚焦範圍允許光源的燈絲，其出現在光束中，被用作指針或指示器。一個光束手電筒 10 提供具有最小的黑斑。此外，由手電筒 10產生的斑點圖案是幾乎完美的圓形，在整個焦距的整個範圍。 LED 或光源 50 可以以各種顏色來提供。[0048] In general, light from the LED is focused by the lens, and no reflector is needed. However, with some LEDs, use of a reflector, in combination with a lens, may be advantageous. If the LED used has a large directivity angle, for example, 60, 70, 80, 90 degrees, or greater, the lamp housing 42 can also act as a reflector. Specifically, the interior curved or conical surface or wall 44 is made highly reflective, e.g., by polishing and plating. The divergence angle of the wall 44, or curvature, is then selected to reflect light towards the lens. While in this embodiment the reflector (formed by the surface 44) moves with the lens, a fixed reflector, e.g., supported on the switch housing 64, may also be used.

[ 0048 ]一般地，來自 LED 的光被聚焦的透鏡，也沒有反射器是必要的。然而，一些發光二極管，使用反射器，在帶透鏡的組合，可以是有利的。如果所使用的 LED 具有大的指向性角度，例如， 60，70， 80 ，90 度，或更大，燈殼體 42 也可以充當反射器。具體地講，向內彎曲的或錐形的表面或壁 44 由高反射率的，例如，通過拋光和電鍍。壁 44 ，或曲率的發散角度，然後被選定的，以反映對透鏡的光。雖然在本實施例中，反射器（由表面 44形成的）與透鏡，固定反射器，例如，支撐在開關殼體 64移動時，也可使用。[0049] The housing ring 18 and front cap 12 provide convenient grip surfaces for turning the front and rear housings relative to each other to switch the flashlight 10 on and off, and to focus the light beam. The housing seal 78 is the only dynamic seal in the flashlight 10. The other seals are static.

[ 0049 ]殼體環 18和前蓋 12 提供方便的握表面，用於轉動前部和後部的外殼相對於彼此以打開或關閉手電筒 10 ，並聚焦光束。外殼密封 78 是唯一的動密封在手電筒 10 。其他密封件是靜態的。[0050] Referring to FIG. 19, when the flashlight 10 is turned on by twisting or turning the front and rear housing sections 16and 20, the switch 60 closes, or moves to the on position. Battery voltage 90 is then applied to the relay 150, causing the relay to close. Consequently, current flows through the LED 50 generating light. At the same time, the capacitor C1 begins to charge. When the voltage V1 across the capacitor C1 reaches a trigger level, it causes the output of the amplifier 158 (which act as an inverter) to cause the transistor 156 to switch the relay off or

open. Power to the LED 50 is then interrupted, preserving the life of the battery 90.

[ 0050 ]參考圖 19 ，當手電筒 10 被扭曲或旋轉前和後外殼部分16和 20 ，開關 60 關閉，或移動到該位置上接通。電池電壓 90 ，然後應用到中繼 150 ，使得繼電器關閉。因此，電流流過 LED 50

產生的光。在同一時間，電容器 C1 開始充電。當電容器 C 1兩端的電壓V1達到觸發電平，它使放大器 158 的輸出（它作為一個逆變器），以使晶體管 156 來切換繼電器關閉或打開。功率到 LED 50

，然後中斷，保持電池 90 的壽命。[0051] To turn the flashlight 10 back on, the switch 60 is returned to the off position by turning the front and rear housing sections in the opposite directions. With the switch 60 in the off position, the capacitor C1 discharges through the resister R1, returning V1 to zero, and effectively resetting the timer 70. When the switch 60 is moved back to the on position, power is again supplied to the LED, and the flashlight is turned on to provide light. The timer circuit 70 reset to turn off power to the LED after a preset interval. The preset interval is determined by selecting the value of C1. By providing one or more additional capacitors 152 and a capacitor switch 154, the time interval before shut off can be adjusted, or selected from two (or more) preset values. The switch 154 is on or in the switch housing 54, is typically set by the user's preference, and then remains in the shorter or longer internal position. The second switch position can be a timer bypass option.

[ 0051 ]如要關閉手電筒 10 背面上時，開關 60 是通過轉動前和後外殼部分在相反的方向返回到關閉位置。與處於關閉位置時，開關

60 ，電容器 C1放電通過電阻R1 ，返回V1 到零，並有效地重新設置計時器 70 。當開關 60 被向後移動到打開位置時，電源再次提供給 LED，並且手電筒被打開以提供光。定時器電路 70復位，關閉電源，以預先設定的時間間隔後的 LED 。在預設的時間間隔是通過選擇C1 的值來確定。通過提供一個或多個附加電容器 152和電容器開關 154 ，之前關閉的時間間隔可以調節，或由兩種（或更多）的預置值中選擇。開關 154 是上或在開關盒 54 中，通常由用戶的偏好設置，然後保持在較短或較長的內部位置。第二開關位置可以是一個計時器旁路選項。[0052] Turning now to FIGS. 14-18, in another flashlight embodiment 200, three lamps or LED's 50 are provided, and a lens14 is aligned and associated with each LED 50. Except as described below, the flashlight 200 is similar to the flashlight 10described above. A lens ring 202 and a lens base 204 have three openings 206 for receiving or holding three lenses 14. Each lens 14 is secured in place on the lens ring 202 within an O-ring 208. The lens ring 202 and lens base 204 are attached to each other by screw threads, adhesives, etc., after the lenses 14 are placed into the lens ring 202. Counterbores 209 extend into the back surface of the lens base 204. Anti-rotation pins 210 extend from the switch housing 212 into the counterbores. As the switch housing 212 is fixed to the rear housing section 214, the lens ring 202 does not rotate with the front housing. The lenses 14 in the lens ring can move longitudinally towards and away from the LED's, while staying aligned with the LED's. The switch housing 212 holds three LED's 50, with each LED aligned with a lens 14. A Teflon (Flourine resins) washer214 between the front housing section 216 and the lens base allows the front housing section 216 to rotate and slide smoothly against the lens base 204, as the front housing section 216 is rotated to

turn on or focus the flashlight 200. Similarly, a low friction O-ring or seal 218 supports the lens ring 202 within the front housing section 216, while allowing for rotational and front/back sliding movement between them. A front cap 220 is sealed against the front housing section 216with an O-ring or seal 222.

[ 0052 ]現在轉到圖。 14-18 ，在另一個實施例中的手電筒 200 中，三盞燈或 LED 的設置 50，以及透鏡 14 被對準並與每個 LED 50 相關聯。除了下文所描述的那樣，手電筒 200 類似於上述 10 所述的手電筒。鏡頭環 202和鏡座 204 有三個開口 206 用於接收或持有三個鏡頭 14 。各透鏡 14 被固定在適當位置的鏡片環 202 的 O形環 208

內的。鏡頭環 202和透鏡基座 204 連接到彼此通過螺紋，粘合劑等，後鏡片 14頃置於透鏡環 202 。埋頭孔 209 延伸到透鏡基體 204 的背面上。抗旋轉銷 210 從開關殼體 212伸入埋頭孔。由於開關外殼212 被固定在後殼體部分 214 ，透鏡環 202 不旋轉的前殼體。在鏡頭環透鏡 14 可以縱向移動朝向和遠離 LED 的，而與 LED 的原地對齊。開關外殼 212擁有三個 LED 50 ，與鏡頭對準 14每個 LED 。特氟隆（個氟樹脂）墊圈 214 的前外殼部分 216和透鏡基體之間使前殼體部分 216 旋轉並順利地對透鏡基體 204 上滑動，由於前殼體部分 216 旋轉到打開或聚焦手電筒 200 。同樣，低摩擦O形環或密封件 218 支撐鏡頭環 202 的前殼體部分 216 內，同時允許旋轉和

前/後它們之間的滑動運動。的前蓋 220 被密封，以防止前殼體部216 與 O形環或密封件 222 。[0053] In use, as the front housing section 216 is twisted or rotated, it moves front to back via the interaction of the screw threads 104 and 84. The LED's 50 remained fixed in place. The lenses 14 move front to back, with movement of the front housing section, but they do not rotate as the lens ring 202 and lens base 204 are held against rotation or angular movement by the pins 210. Consequently, light from each of the three LED's 50 can be focused with movement of the front housing section 216. Of course, the design shown in FIGS. 14-18 is suitable for use with 2, 3, 4 or any number of additional LED's.

[ 0053 ]在使用中，前殼體部分 216 被扭曲或旋轉時，其移動前方通過螺紋 104和 84之間的相互作用來備份。 LED 的 50仍固定在適當位置。透鏡 14移動從前到後，與前殼體部分的運動，但它們不旋轉的鏡片環 202和透鏡基體 204 通過銷 210保持不轉動或角運動。因此，光從每個三個 LED 50 可以聚焦與前外殼部分 216 的運動。當然，示於圖的設計。 14-18 是適合於與 2 ，3，4 或任意數量的附加的 LED 的用途。[0054] Turning to FIG. 20, in an alternative timer circuit 250, the switch 154 is removed and replaced with switch 254. The switch 254, when closed, connects the LED 50 and the resistor R4 directly to the battery 90. All of the other components are bypassed. As a result, when the switch 254 is closed, the timer circuit 250 is inactive or disabled, and illumination by the LED is controlled purely by the switch 60. This design is advantageous where the user wants the flashlight to remain on until manually turned off using the switch 60, which is actuated by

turning the front housing section. When the switch 254 is in the open position, the timer circuit shown in FIG. 20 operates in the same way as the timer circuit 70 shown in FIG. 19. With the switch 254 open, the timer circuit 250 automatically turns the flashlight off after a preset interval of time determined by the capacitors C1 and 152. The timer circuit 250 otherwise operates in same way as the timer circuit 70, except as described above.

[ 0054 轉向圖。 20 ，在一個備選的定時器電路 250 ，開關 154 被移除，並用開關 254取代。開關 254 ，在閉合時，連接 LED 50和電阻器 R4 直接與電池 90 。所有其它部件都繞過。其結果是，當開關 254 閉合時，定時器電路 250處於不活動狀態或禁用，並且由LED 照明，通過開關 60純粹控制。這種設計是有利的，在用戶想要的手電筒，以保持直到手動關閉使用開關 60，其是通過轉動前殼體部分致動。當開關 254處在打開位置時，如圖定時器電路。 20操作以相同的方式如在圖中所示的定時器電路 70 。 19 。與開關 254 打開時，定時器電路 250自動地在預設的時間間隔由電容器 C1和152確定之後打開手電筒關閉。定時器電路 250 ，否則工作在相同的方式，定時器電路 70 ，除了如上面所述。[0055] Referring momentarily to FIGS. 5 and 17, the switch 154 or 254 is set in the open or closed position by removing the front cap 12, along with the lens 14, O-ring 40, and the lamp housing 42 (which remain as a single sub-assembly with the lamp housing pressed into the front cap 12). Referring to FIG. 6, an instrument, such as a small screwdriver blade, or even a pen or pencil tip, is inserted through the access hole 57 in the switch housing 54 to set the switch 154 or 254 to the desired position.

The switch 154 can be set to a shorter or a longer time interval before automatic shutoff. If the switch 254 is used, the switch positions are automatic shutoff mode (determined by the capacitors), or “permanent on” where the flashlight acts as a conventional flashlight controlled entirely by the switch 60, and with no automatic shutoff feature. Referring to FIG. 14, in the embodiment 200, the switch 154 or 254 is set by removing the front cap 220, along with the O-rings 208 and 222, the lens ring 202, the lens base 204, and the lenses 14 (which remain as single sub-assembly). The switch 154 or 254 is then readily directly accessible.

[ 0055 ]暫時參照圖 5和 17，開關 154 或 254 被設置在打開或關閉位置以卸下前蓋 12 ，沿著與透鏡 14 ， O形環 40和燈殼體 42

（其保持為一個單一的子組件與燈殼體壓入前蓋 12）。參照圖 6 ，一種工具，諸如小螺絲刀，甚至鋼筆或鉛筆尖，是通過在開關盒 54

的開關 154 或 254 設置為所需的位置的進入孔 57插入。開關 154

可以設置為較短的或自動停止之前較長的時間間隔。如果開關 254

被使用時，開關的位置是自動停止模式（由電容確定的） ，或“永久的”當手電筒充當完全由開關 60控制一個常規的手電筒，並沒有自動關機功能。參照圖 14 ，在實施例 200 中，開關 154 或 254

是通過去除前蓋 220 設置，隨著 O形環 208和 222 ，鏡片環 202

，透鏡基體 204 ，和透鏡 14 （其保持為單子組件） 。開關 154 或254 是那麼容易直接訪問。[0056] Thus, a novel flashlight has been shown and described. Various changes and modifications may be made without departing without the

spirit and scope of the invention. The invention, therefore, should not be limited, except by the following claims, and their equivalents.

[ 0056 ]因此，一種新的手電筒已經示出和描述。各種改變和修改可以在不脫離不本發明的精神和範圍。本發明中，因此，不應該是有限的，除了由所附權利要求及其等同物。What is claimed is:

什麼是聲稱：1. A flashlight comprising:a housing having a first end and a second end;a lens adjacent the first end; anda light emitting diode between the lens and the second end.

1 一個手電筒，包括：

具有第一端和第二端的殼體;

相鄰的所述第一端部的透鏡，以及

透鏡和所述第二端之間的發光二極管。

2. The flashlight of claim 1 with the lens having a flat back surface.

2 根據權利要求 1 與具有平底面透鏡的手電筒。

3. The flashlight of claim 2 wherein the lens comprises glass.

3 根據權利要求 2 所述的透鏡包括玻璃的手電筒。4. The flashlight of claim 1 wherein the housing comprises a front section attached to a back section via screw threads, and with the lens supported on the front section and the light emitting diode supported on the back section.

4 根據權利要求 1 ，其特徵在於，所述外殼包括連接到通過螺紋的背面部的前部，並與透鏡支承在前部和支承在後面部分中的發光二極管的手電筒。

5. The flashlight of claim 4 further comprising a timer circuit for automatically turning off the flashlight after a preset time interval.

5 根據權利要求 4 所述的手電筒，還包括一個定時器電路，用於自動關閉手電筒在預設的時間間隔之後。

6. The flashlight of claim 5 with the timer circuit further including a switch for selecting a first or a second preset time interval.

6 根據權利要求 5 的定時器電路，還包括用於選擇第一或第二預先設定的時間間隔的開關的手電筒。

7. The flashlight of claim 5 further comprising a microswitch electrically connected to the LED, and with the microswitch switchable from an off

position to an on position via relative movement between front and back sections of the housing.

7 根據權利要求 5 的手電筒，還包括電連接至 LED 的微型開關，並與微型開關可切換從關閉位置到通過前和殼體的背面部分之間的相對移動的位置上。

8. The flashlight of claim 1 with the lens having a focal length of 8-16 mm.

8 。根據權利要求 1 與具有 8-16毫米的焦距透鏡的手電筒。

9. The flashlight of claim 4 further comprising a seal between the front and back sections of the housing.

9 。根據權利要求 4 所述的手電筒，還包括所述殼體的所述正面和背面部分之間形成密封。

10. The flashlight of claim 1 further comprising a front cap on the housing surrounding the lens.

10 根據權利要求 1 所述的手電筒，還包括圍繞所述透鏡在所述殼體上的前蓋。11. A flashlight comprising:a housing;a light source in the housing;

a switch in the housing, with the switch housing an on position and an off position;a timer circuit in the housing electrically connected to the switch, and with the timer circuit having means for turning off power to the light source, after a predetermined time interval, regardless of whether the switch is in the on position or the off position.

11 一個手電筒，包括：

外殼;

在外殼中的光源;

在殼體中的開關，以在位置和斷開位置的開關外殼中的;

一定時器電路在電連接到所述開關殼體上，並與具有用於關閉電源光源的定時器電路，在預定時間間隔之後，無論開關是否處於開啟位置或關閉位置。

12. The flashlight of claim 11 further comprising a lens adjacent to the LED.

12 如權利要求 11 所述的手電筒，還包括鄰近所述 LED 的透鏡。13. The flashlight of claim 12 with the housing having a front section moveable relative to a rear section, and with the lens supported on the front section and the LED supported on the rear section.

13 根據權利要求 12 的殼體，它具有一個前部可相對於後部部分中，並與支承在前部和支承在後部部分中的 LED 透鏡的手電筒。

14. The flashlight of claim 12 further comprising means for changing the position of the lens relative to the LED.

14 如權利要求 12 所述的手電筒，還包括裝置，用於改變相對於鏡頭的位置的 LED 。15. The flashlight of claim 11 with timer circuit switchable to provide first and second time intervals.

15 根據權利要求 11 與計時器電路可切換的，以提供第一和第二時間間隔的手電筒。16. A flashlight comprising:a front housing section;a rear housing section attached to the front housing section;a front cap attached to a front end of the front housing section;a lens secured within the front cap;a light source supported on the rear housing section and positioned within the front housing section adjacent to the lens;a switch housing within the rear housing section;a switch in the rear housing electrically connected to the light source and connectable to an electrical power source;a plunger extending out of the switch housing with the plunger moveable to activate the switch with movement of the front housing section relative to the switch housing; and an automatic shutoff timer circuit electrically connected to the switch.

16 一個手電筒，包括：前殼體部分;

安裝到前殼體部分的後殼體部;

安裝到前外殼部分的前端的前蓋;

前蓋內固定鏡頭;

在後殼體部分的光源支撐並定位成鄰近所述透鏡前殼體部分內;

後殼體部內的開關殼體;

在後殼體電連接到光源和連接到一個電源的開關;

柱塞延伸出與活塞移動以激活開關與前殼體相對於所述開關殼體的部分的運動的開關殼體;和一個自動停止定時器電路電連接到所述開關。17. The flashlight of claim 13 with the timer circuit comprising and RC circuit.

17 根據權利要求 13 的定時電路包括：和RC 電路的手電筒。18. The flashlight of claim 13 further comprising a first seal between the lens and front cap, a second seal between the front cap and the front housing section, and a third seal between the front and rear housing sections.

18 如權利要求 13 所述的手電筒，還包括透鏡和前蓋，前蓋和前殼體部分之間的第二密封件，以及前部和後部外殼部分之間的第三密封件之間的第一密封件。19. The flashlight of claim 13 wherein the rear housing section is attached to a back end of the front housing section with screw threads.

19 如權利要求 13 所述後殼體部分連到有螺紋的前殼體部的後端的手電筒。

20. The flashlight of claim 13 further comprising a switch housing tube joined to a front end of the rear housing section, with the switch housing contained with the switch housing tube and with the switch housing tube extending into the front housing tube.

20 根據權利要求 13還包括一個開關外殼管的手電筒連接到後殼體部分的前端，與包含與開關殼體管和與所述開關殼體管延伸到所述前殼體管開關外殼。21. The flashlight of claim 18 further comprising a battery contact extending through the back end of the switch housing tube.

21 如權利要求 18 所述的手電筒，還包括通過開關殼體管的後端延伸的電池接觸。22. The flashlight of claim 13 further comprising a lamp housing supported on the front end cap.

22 如權利要求 13 所述的手電筒，還包括支撐在所述前端帽燈殼體。23. A flashlight comprising:a front housing engaged to a rear housing via screw threads;two or more light sources supported on the rear housing;a lens base having a lens aligned with each of the light sources, and with the lens base axially moveable with rotation of the front housing, while maintaining the lenses in alignment with the light sources.

23 。手電筒，包括：前殼體從事通過螺紋後殼;

支承在後殼體上的兩個或更多個光源;

具有透鏡基地與各所述光源對準的透鏡，並與透鏡基體可軸向移動的與外殼前部的旋轉，在保持透鏡對準的光源。24. The flashlight of claim 23 further comprising one or more anti-rotation pins extending from the rear housing into an opening in the lens base.

24 根據權利要求 23還包括從所述後殼體延伸到在透鏡基體中的開口的一個或多個抗旋轉銷的手電筒。25. A flashlight comprising:an LED having a directivity angle A;a lens for focusing light emitted from the LED, with the lens having a focal length f,and with the ratio of A/f between 4 and 6.

25 一個手電筒，包括：具有指向角 A 的 LED ;

一個透鏡，用於聚焦光從 LED 發射的，與具有焦距 f 的透鏡，並用 4和 6之間 A / F 比。26. A flashlight comprising:a front housing engaged to a rear housing via front housing screw threads;a tube on the rear housing extending into the front housing;a stop on the tube engageable against a surface on the front housing, to prevent the front housing from separating from the rear housing.

26 一個手電筒，包括：從事通過前殼體螺紋的後殼體前部外殼;

延伸到所述前殼體的後殼體上的管;

一個停止對在前面殼體的表面上的管子相嚙合，以防止前殼體從所述後殼體分離。27. The flashlight of claim 26 wherein the stop comprises an annular rim.

27 如權利要求 26 所述的手電筒，其中所述停止包括一環形輪圈。28. The flashlight of claim 26 wherein the tube is attached to the rear housing via tube screw threads.

28 如權利要求 26 所述的管連接到通過管螺紋的後殼體的手電筒。29. A flashlight comprising:an LED;a reflector around the LED;a lens positioned to focus light reflected from the reflector;and focus means for moving the lens relative to the LED.

29 一個手電筒，包括：一個 LED ;

圍繞 LED 的反射器;

一個透鏡定位成聚焦光從反射器反射的光;

和聚焦裝置，用於相對移動的透鏡到 LED。